157773130 has 8 divisors (see below), whose sum is σ = 283991652. Its totient is φ = 63109248.

The previous prime is 157773127. The next prime is 157773151. The reversal of 157773130 is 31377751.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 142539721 + 15233409 = 11939^2 + 3903^2 .

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

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, 7888647 + ... + 7888666.

Almost surely, 2^157773130 is an apocalyptic number.

157773130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157773130 is a deficient number, since it is larger than the sum of its proper divisors (126218522).

157773130 is a wasteful number, since it uses less digits than its factorization.

157773130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15777320.

The product of its (nonzero) digits is 15435, while the sum is 34.

The square root of 157773130 is about 12560.7774440916. Note that the first 3 decimals coincide. The cubic root of 157773130 is about 540.3531412070.

The spelling of 157773130 in words is "one hundred fifty-seven million, seven hundred seventy-three thousand, one hundred thirty".