1849252157 has 2 divisors, whose sum is σ = 1849252158. Its totient is φ = 1849252156.

The previous prime is 1849252147. The next prime is 1849252211. The reversal of 1849252157 is 7512529481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1303282201 + 545969956 = 36101^2 + 23366^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1849252157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1849252147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 924626078 + 924626079.

It is an arithmetic number, because the mean of its divisors is an integer number (924626079).

Almost surely, 2^1849252157 is an apocalyptic number.

It is an amenable number.

1849252157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1849252157 is an equidigital number, since it uses as much as digits as its factorization.

1849252157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 44.

The square root of 1849252157 is about 43002.9319581816. The cubic root of 1849252157 is about 1227.4355889730.

The spelling of 1849252157 in words is "one billion, eight hundred forty-nine million, two hundred fifty-two thousand, one hundred fifty-seven".