157030378 has 4 divisors (see below), whose sum is σ = 235545570. Its totient is φ = 78515188.

The previous prime is 157030333. The next prime is 157030381. The reversal of 157030378 is 873030751.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 154330929 + 2699449 = 12423^2 + 1643^2 .

It is a super-2 number, since 2×157030378² = 49317079229645768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39257593 + ... + 39257596.

Almost surely, 2^157030378 is an apocalyptic number.

157030378 is a deficient number, since it is larger than the sum of its proper divisors (78515192).

157030378 is an equidigital number, since it uses as much as digits as its factorization.

157030378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78515191.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 157030378 is about 12531.1762416782. The cubic root of 157030378 is about 539.5038630041.

The spelling of 157030378 in words is "one hundred fifty-seven million, thirty thousand, three hundred seventy-eight".