157782230 has 16 divisors (see below), whose sum is σ = 284169600. Its totient is φ = 63076992.

The previous prime is 157782223. The next prime is 157782263. The reversal of 157782230 is 32287751.

157782230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20702 + ... + 27278.

It is an arithmetic number, because the mean of its divisors is an integer number (17760600).

Almost surely, 2^157782230 is an apocalyptic number.

157782230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157782230 is a deficient number, since it is larger than the sum of its proper divisors (126387370).

157782230 is a wasteful number, since it uses less digits than its factorization.

157782230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8983.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 157782230 is about 12561.1396775930. The cubic root of 157782230 is about 540.3635297927.

The spelling of 157782230 in words is "one hundred fifty-seven million, seven hundred eighty-two thousand, two hundred thirty".