151770990 has 64 divisors (see below), whose sum is σ = 425170944. Its totient is φ = 33950208.

The previous prime is 151770979. The next prime is 151770991. The reversal of 151770990 is 99077151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151770991) 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, 2182 + ... + 17558.

It is an arithmetic number, because the mean of its divisors is an integer number (6643296).

Almost surely, 2^151770990 is an apocalyptic number.

151770990 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 151770990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212585472).

151770990 is an abundant number, since it is smaller than the sum of its proper divisors (273399954).

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

151770990 is a wasteful number, since it uses less digits than its factorization.

151770990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15441.

The product of its (nonzero) digits is 19845, while the sum is 39.

The square root of 151770990 is about 12319.5369231153. The cubic root of 151770990 is about 533.4121728069.

The spelling of 151770990 in words is "one hundred fifty-one million, seven hundred seventy thousand, nine hundred ninety".