157304471 has 2 divisors, whose sum is σ = 157304472. Its totient is φ = 157304470.

The previous prime is 157304467. The next prime is 157304473. The reversal of 157304471 is 174403751.

It is a strong prime.

It is an emirp because it is prime and its reverse (174403751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157304471 - 2² = 157304467 is a prime.

It is a super-4 number, since 4×157304471⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

Together with 157304473, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157304473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78652235 + 78652236.

It is an arithmetic number, because the mean of its divisors is an integer number (78652236).

Almost surely, 2^157304471 is an apocalyptic number.

157304471 is a deficient number, since it is larger than the sum of its proper divisors (1).

157304471 is an equidigital number, since it uses as much as digits as its factorization.

157304471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 157304471 is about 12542.1079169333. The cubic root of 157304471 is about 539.8175778418.

The spelling of 157304471 in words is "one hundred fifty-seven million, three hundred four thousand, four hundred seventy-one".