153078990 has 32 divisors (see below), whose sum is σ = 377321760. Its totient is φ = 39717504.

The previous prime is 153078979. The next prime is 153078997. The reversal of 153078990 is 99870351.

153078990 = 2016² + 2017² + ... + 2052².

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153078997) 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, 67845 + ... + 70064.

It is an arithmetic number, because the mean of its divisors is an integer number (11791305).

Almost surely, 2^153078990 is an apocalyptic number.

153078990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

153078990 is an abundant number, since it is smaller than the sum of its proper divisors (224242770).

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

153078990 is a wasteful number, since it uses less digits than its factorization.

153078990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137956.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 153078990 is about 12372.5094463492. The cubic root of 153078990 is about 534.9401511064.

The spelling of 153078990 in words is "one hundred fifty-three million, seventy-eight thousand, nine hundred ninety".