113142550 has 12 divisors (see below), whose sum is σ = 210445236. Its totient is φ = 45257000.

The previous prime is 113142541. The next prime is 113142563. The reversal of 113142550 is 55241311.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1131376 + ... + 1131475.

It is an arithmetic number, because the mean of its divisors is an integer number (17537103).

Almost surely, 2^113142550 is an apocalyptic number.

113142550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

113142550 is a deficient number, since it is larger than the sum of its proper divisors (97302686).

113142550 is a wasteful number, since it uses less digits than its factorization.

113142550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262863 (or 2262858 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 113142550 is about 10636.8486874638. The cubic root of 113142550 is about 483.6620224289.

Adding to 113142550 its reverse (55241311), we get a palindrome (168383861).

It can be divided in two parts, 1131 and 42550, that added together give a square (43681 = 209²).

The spelling of 113142550 in words is "one hundred thirteen million, one hundred forty-two thousand, five hundred fifty".