1264076137 has 4 divisors (see below), whose sum is σ = 1330606480. Its totient is φ = 1197545796.

The previous prime is 1264076131. The next prime is 1264076171. The reversal of 1264076137 is 7316704621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1264076137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1264076096 and 1264076105.

It is not an unprimeable number, because it can be changed into a prime (1264076131) 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, 33265143 + ... + 33265180.

It is an arithmetic number, because the mean of its divisors is an integer number (332651620).

Almost surely, 2^1264076137 is an apocalyptic number.

It is an amenable number.

1264076137 is a deficient number, since it is larger than the sum of its proper divisors (66530343).

1264076137 is an equidigital number, since it uses as much as digits as its factorization.

1264076137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66530342.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 1264076137 is about 35553.8484133574. The cubic root of 1264076137 is about 1081.2457438794.

The spelling of 1264076137 in words is "one billion, two hundred sixty-four million, seventy-six thousand, one hundred thirty-seven".