1612457145 has 32 divisors (see below), whose sum is σ = 3087100800. Its totient is φ = 793824192.

The previous prime is 1612457131. The next prime is 1612457149. The reversal of 1612457145 is 5417542161.

1612457145 is a `hidden beast` number, since 1 + 61 + 2 + 457 + 145 = 666.

It is not a de Polignac number, because 1612457145 - 2⁸ = 1612456889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1612457149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 457635 + ... + 461144.

It is an arithmetic number, because the mean of its divisors is an integer number (96471900).

Almost surely, 2^1612457145 is an apocalyptic number.

1612457145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1612457145 is a deficient number, since it is larger than the sum of its proper divisors (1474643655).

1612457145 is a wasteful number, since it uses less digits than its factorization.

1612457145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918806 (or 918800 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 1612457145 is about 40155.4123998248. The cubic root of 1612457145 is about 1172.6346609839.

The spelling of 1612457145 in words is "one billion, six hundred twelve million, four hundred fifty-seven thousand, one hundred forty-five".