151229490 has 32 divisors (see below), whose sum is σ = 375468480. Its totient is φ = 38937024.

The previous prime is 151229489. The next prime is 151229497. The reversal of 151229490 is 94922151.

151229490 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (151229497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86044 + ... + 87783.

It is an arithmetic number, because the mean of its divisors is an integer number (11733390).

Almost surely, 2^151229490 is an apocalyptic number.

151229490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151229490 is an abundant number, since it is smaller than the sum of its proper divisors (224238990).

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

151229490 is a wasteful number, since it uses less digits than its factorization.

151229490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173866.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 151229490 is about 12297.5399979020. The cubic root of 151229490 is about 532.7770340970. Note that the first 3 decimals are identical.

The spelling of 151229490 in words is "one hundred fifty-one million, two hundred twenty-nine thousand, four hundred ninety".