131642450 has 24 divisors (see below), whose sum is σ = 257743920. Its totient is φ = 49885200.

The previous prime is 131642443. The next prime is 131642473. The reversal of 131642450 is 54246131.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68336 + ... + 70235.

It is an arithmetic number, because the mean of its divisors is an integer number (10739330).

Almost surely, 2^131642450 is an apocalyptic number.

131642450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131642450 is a deficient number, since it is larger than the sum of its proper divisors (126101470).

131642450 is a wasteful number, since it uses less digits than its factorization.

131642450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138602 (or 138597 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 131642450 is about 11473.5543751708. The cubic root of 131642450 is about 508.7041947142.

Adding to 131642450 its reverse (54246131), we get a palindrome (185888581).

The spelling of 131642450 in words is "one hundred thirty-one million, six hundred forty-two thousand, four hundred fifty".