131100542 has 4 divisors (see below), whose sum is σ = 196650816. Its totient is φ = 65550270.

The previous prime is 131100539. The next prime is 131100553. The reversal of 131100542 is 245001131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 245001131 = 233 ⋅1051507.

It is a super-2 number, since 2×131100542² = 34374704225387528, 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 131100542.

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, 32775134 + ... + 32775137.

It is an arithmetic number, because the mean of its divisors is an integer number (49162704).

Almost surely, 2^131100542 is an apocalyptic number.

131100542 is a deficient number, since it is larger than the sum of its proper divisors (65550274).

131100542 is an equidigital number, since it uses as much as digits as its factorization.

131100542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65550273.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 131100542 is about 11449.9144974974. The cubic root of 131100542 is about 508.0052053737.

Adding to 131100542 its reverse (245001131), we get a palindrome (376101673).

The spelling of 131100542 in words is "one hundred thirty-one million, one hundred thousand, five hundred forty-two".