1952139652 has 12 divisors (see below), whose sum is σ = 3420472860. Its totient is φ = 974861696.

The previous prime is 1952139649. The next prime is 1952139659. The reversal of 1952139652 is 2569312591.

It can be written as a sum of positive squares in 2 ways, for example, as 1375371396 + 576768256 = 37086^2 + 24016^2 .

It is a super-2 number, since 2×1952139652² = 7621698441821362208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1952139599 and 1952139608.

It is not an unprimeable number, because it can be changed into a prime (1952139659) 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, 298393 + ... + 304864.

It is an arithmetic number, because the mean of its divisors is an integer number (285039405).

Almost surely, 2^1952139652 is an apocalyptic number.

It is an amenable number.

1952139652 is a deficient number, since it is larger than the sum of its proper divisors (1468333208).

1952139652 is a wasteful number, since it uses less digits than its factorization.

1952139652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604070 (or 604068 counting only the distinct ones).

The product of its digits is 145800, while the sum is 43.

The square root of 1952139652 is about 44183.0244777335. The cubic root of 1952139652 is about 1249.7897570670.

The spelling of 1952139652 in words is "one billion, nine hundred fifty-two million, one hundred thirty-nine thousand, six hundred fifty-two".