131049478 has 16 divisors (see below), whose sum is σ = 226275840. Its totient is φ = 55759176.

The previous prime is 131049473. The next prime is 131049487. The reversal of 131049478 is 874940131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131049473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31726 + ... + 35617.

It is an arithmetic number, because the mean of its divisors is an integer number (14142240).

Almost surely, 2^131049478 is an apocalyptic number.

131049478 is a deficient number, since it is larger than the sum of its proper divisors (95226362).

131049478 is a wasteful number, since it uses less digits than its factorization.

131049478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67491.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 131049478 is about 11447.6843946713. The cubic root of 131049478 is about 507.9392403616.

The spelling of 131049478 in words is "one hundred thirty-one million, forty-nine thousand, four hundred seventy-eight".