39513142 has 4 divisors (see below), whose sum is σ = 59269716. Its totient is φ = 19756570.

The previous prime is 39513139. The next prime is 39513197. The reversal of 39513142 is 24131593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24131593 = 149 ⋅161957.

It is a super-2 number, since 2×39513142² = 3122576781424328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39513142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9878284 + ... + 9878287.

It is an arithmetic number, because the mean of its divisors is an integer number (14817429).

Almost surely, 2^39513142 is an apocalyptic number.

39513142 is a deficient number, since it is larger than the sum of its proper divisors (19756574).

39513142 is a wasteful number, since it uses less digits than its factorization.

39513142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19756573.

The product of its digits is 3240, while the sum is 28.

The square root of 39513142 is about 6285.9479794220. The cubic root of 39513142 is about 340.6019957755.

The spelling of 39513142 in words is "thirty-nine million, five hundred thirteen thousand, one hundred forty-two".