152994481 has 8 divisors (see below), whose sum is σ = 156804480. Its totient is φ = 149231472.

The previous prime is 152994469. The next prime is 152994503. The reversal of 152994481 is 184499251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 152994481 - 2⁹ = 152993969 is a prime.

It is a super-2 number, since 2×152994481² = 46814622432918722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152994451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5110 + ... + 18223.

It is an arithmetic number, because the mean of its divisors is an integer number (19600560).

Almost surely, 2^152994481 is an apocalyptic number.

It is an amenable number.

152994481 is a deficient number, since it is larger than the sum of its proper divisors (3809999).

152994481 is an equidigital number, since it uses as much as digits as its factorization.

152994481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23495.

The product of its digits is 103680, while the sum is 43.

The square root of 152994481 is about 12369.0937824887. The cubic root of 152994481 is about 534.8416930514.

The spelling of 152994481 in words is "one hundred fifty-two million, nine hundred ninety-four thousand, four hundred eighty-one".