1307055157 has 4 divisors (see below), whose sum is σ = 1321741260. Its totient is φ = 1292369056.

The previous prime is 1307055131. The next prime is 1307055179. The reversal of 1307055157 is 7515507031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7515507031 = 1439 ⋅5222729.

It can be written as a sum of positive squares in 2 ways, for example, as 348905041 + 958150116 = 18679^2 + 30954^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1307055157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307055107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7342918 + ... + 7343095.

It is an arithmetic number, because the mean of its divisors is an integer number (330435315).

Almost surely, 2^1307055157 is an apocalyptic number.

It is an amenable number.

1307055157 is a deficient number, since it is larger than the sum of its proper divisors (14686103).

1307055157 is an equidigital number, since it uses as much as digits as its factorization.

1307055157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14686102.

The product of its (nonzero) digits is 18375, while the sum is 34.

The square root of 1307055157 is about 36153.2177959307. The cubic root of 1307055157 is about 1093.3636678472.

The spelling of 1307055157 in words is "one billion, three hundred seven million, fifty-five thousand, one hundred fifty-seven".