102741531 has 16 divisors (see below), whose sum is σ = 147719040. Its totient is φ = 63305280.

The previous prime is 102741517. The next prime is 102741553. The reversal of 102741531 is 135147201.

It is not a de Polignac number, because 102741531 - 2¹⁰ = 102740507 is a prime.

It is a super-2 number, since 2×102741531² = 21111644384447922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102741581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19645 + ... + 24318.

It is an arithmetic number, because the mean of its divisors is an integer number (9232440).

Almost surely, 2^102741531 is an apocalyptic number.

102741531 is a deficient number, since it is larger than the sum of its proper divisors (44977509).

102741531 is a wasteful number, since it uses less digits than its factorization.

102741531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44026.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 102741531 is about 10136.1497127854. The cubic root of 102741531 is about 468.3623873376.

Adding to 102741531 its reverse (135147201), we get a palindrome (237888732).

The spelling of 102741531 in words is "one hundred two million, seven hundred forty-one thousand, five hundred thirty-one".