157454434 has 8 divisors (see below), whose sum is σ = 237487068. Its totient is φ = 78292080.

The previous prime is 157454419. The next prime is 157454443. The reversal of 157454434 is 434454751.

It can be written as a sum of positive squares in 2 ways, for example, as 157427209 + 27225 = 12547^2 + 165^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 157454393 and 157454402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217117 + ... + 217840.

Almost surely, 2^157454434 is an apocalyptic number.

157454434 is a deficient number, since it is larger than the sum of its proper divisors (80032634).

157454434 is a wasteful number, since it uses less digits than its factorization.

157454434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435140.

The product of its digits is 134400, while the sum is 37.

The square root of 157454434 is about 12548.0848737965. The cubic root of 157454434 is about 539.9890647077.

The spelling of 157454434 in words is "one hundred fifty-seven million, four hundred fifty-four thousand, four hundred thirty-four".