143961357 has 16 divisors (see below), whose sum is σ = 196116480. Its totient is φ = 93905712.

The previous prime is 143961353. The next prime is 143961379. The reversal of 143961357 is 753169341.

It is not a de Polignac number, because 143961357 - 2² = 143961353 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143961353) 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, 38388 + ... + 41970.

It is an arithmetic number, because the mean of its divisors is an integer number (12257280).

Almost surely, 2^143961357 is an apocalyptic number.

It is an amenable number.

143961357 is a deficient number, since it is larger than the sum of its proper divisors (52155123).

143961357 is a wasteful number, since it uses less digits than its factorization.

143961357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3872.

The product of its digits is 68040, while the sum is 39.

The square root of 143961357 is about 11998.3897669646. The cubic root of 143961357 is about 524.1013888556.

It can be divided in two parts, 14396 and 1357, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 143961357 in words is "one hundred forty-three million, nine hundred sixty-one thousand, three hundred fifty-seven".