1887513145 has 32 divisors (see below), whose sum is σ = 2754943488. Its totient is φ = 1211900928.

The previous prime is 1887513127. The next prime is 1887513163. The reversal of 1887513145 is 5413157881.

It is an interprime number because it is at equal distance from previous prime (1887513127) and next prime (1887513163).

It is not a de Polignac number, because 1887513145 - 2⁹ = 1887512633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109164 + ... + 125266.

It is an arithmetic number, because the mean of its divisors is an integer number (86091984).

Almost surely, 2^1887513145 is an apocalyptic number.

It is an amenable number.

1887513145 is a deficient number, since it is larger than the sum of its proper divisors (867430343).

1887513145 is a wasteful number, since it uses less digits than its factorization.

1887513145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16329.

The product of its digits is 134400, while the sum is 43.

The square root of 1887513145 is about 43445.5192741438. The cubic root of 1887513145 is about 1235.8430747331.

The spelling of 1887513145 in words is "one billion, eight hundred eighty-seven million, five hundred thirteen thousand, one hundred forty-five".