157273047 has 6 divisors (see below), whose sum is σ = 227172192. Its totient is φ = 104848692.

The previous prime is 157273033. The next prime is 157273073. The reversal of 157273047 is 740372751.

It is not a de Polignac number, because 157273047 - 2¹⁶ = 157207511 is a prime.

It is a super-2 number, since 2×157273047² = 49469622625328418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157273147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8737383 + ... + 8737400.

It is an arithmetic number, because the mean of its divisors is an integer number (37862032).

Almost surely, 2^157273047 is an apocalyptic number.

157273047 is a deficient number, since it is larger than the sum of its proper divisors (69899145).

157273047 is a wasteful number, since it uses less digits than its factorization.

157273047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17474789 (or 17474786 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 157273047 is about 12540.8551143851. The cubic root of 157273047 is about 539.7816298123.

The spelling of 157273047 in words is "one hundred fifty-seven million, two hundred seventy-three thousand, forty-seven".