1520231134 has 16 divisors (see below), whose sum is σ = 2354858496. Its totient is φ = 735298200.

The previous prime is 1520231107. The next prime is 1520231143. The reversal of 1520231134 is 4311320251.

It is a happy number.

It is a super-2 number, since 2×1520231134² = 4622205401565851912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288229 + ... + 293455.

It is an arithmetic number, because the mean of its divisors is an integer number (147178656).

Almost surely, 2^1520231134 is an apocalyptic number.

1520231134 is a deficient number, since it is larger than the sum of its proper divisors (834627362).

1520231134 is a wasteful number, since it uses less digits than its factorization.

1520231134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9951.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1520231134 is about 38990.1414975632. The cubic root of 1520231134 is about 1149.8376920272.

Adding to 1520231134 its reverse (4311320251), we get a palindrome (5831551385).

The spelling of 1520231134 in words is "one billion, five hundred twenty million, two hundred thirty-one thousand, one hundred thirty-four".