1612701090 has 672 divisors, whose sum is σ = 6221390976. Its totient is φ = 291133440.

The previous prime is 1612701067. The next prime is 1612701091. The reversal of 1612701090 is 901072161.

1612701090 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1612701091) by changing a digit.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 94864762 + ... + 94864778.

Almost surely, 2^1612701090 is an apocalyptic number.

1612701090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1612701090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3110695488).

1612701090 is an abundant number, since it is smaller than the sum of its proper divisors (4608689886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1612701090 is a wasteful number, since it uses less digits than its factorization.

1612701090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 1612701090 is about 40158.4497957777. The cubic root of 1612701090 is about 1172.6937930852.

The spelling of 1612701090 in words is "one billion, six hundred twelve million, seven hundred one thousand, ninety".