1352139031 has 4 divisors (see below), whose sum is σ = 1354419792. Its totient is φ = 1349858272.

The previous prime is 1352138951. The next prime is 1352139067. The reversal of 1352139031 is 1309312531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1309312531 = 6421 ⋅203911.

It is a cyclic number.

It is not a de Polignac number, because 1352139031 - 2¹⁷ = 1352007959 is a prime.

It is a super-2 number, since 2×1352139031² = 3656559918307237922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1352139071) 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, 1139491 + ... + 1140676.

It is an arithmetic number, because the mean of its divisors is an integer number (338604948).

Almost surely, 2^1352139031 is an apocalyptic number.

1352139031 is a deficient number, since it is larger than the sum of its proper divisors (2280761).

1352139031 is an equidigital number, since it uses as much as digits as its factorization.

1352139031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280760.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 1352139031 is about 36771.4431454628. The cubic root of 1352139031 is about 1105.7928643504.

The spelling of 1352139031 in words is "one billion, three hundred fifty-two million, one hundred thirty-nine thousand, thirty-one".