143261404 has 48 divisors (see below), whose sum is σ = 296182656. Its totient is φ = 59774400.

The previous prime is 143261399. The next prime is 143261407. The reversal of 143261404 is 404162341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143261407) 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, 120099 + ... + 121285.

It is an arithmetic number, because the mean of its divisors is an integer number (6170472).

Almost surely, 2^143261404 is an apocalyptic number.

It is an amenable number.

143261404 is an abundant number, since it is smaller than the sum of its proper divisors (152921252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143261404 is a wasteful number, since it uses less digits than its factorization.

143261404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1424 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 143261404 is about 11969.1856030392. The cubic root of 143261404 is about 523.2505992066.

The spelling of 143261404 in words is "one hundred forty-three million, two hundred sixty-one thousand, four hundred four".