49143157 has 8 divisors (see below), whose sum is σ = 58605696. Its totient is φ = 40291152.

The previous prime is 49143121. The next prime is 49143161. The reversal of 49143157 is 75134194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49143157 - 2¹⁵ = 49110389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49143167) 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, 152458 + ... + 152779.

It is an arithmetic number, because the mean of its divisors is an integer number (7325712).

Almost surely, 2^49143157 is an apocalyptic number.

It is an amenable number.

49143157 is a deficient number, since it is larger than the sum of its proper divisors (9462539).

49143157 is a wasteful number, since it uses less digits than its factorization.

49143157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305267.

The product of its digits is 15120, while the sum is 34.

The square root of 49143157 is about 7010.2180422580. The cubic root of 49143157 is about 366.2865886171.

It can be divided in two parts, 4 and 9143157, that multiplied together give a triangular number (36572628 = T₈₅₅₂).

The spelling of 49143157 in words is "forty-nine million, one hundred forty-three thousand, one hundred fifty-seven".