2154650 has 12 divisors (see below), whose sum is σ = 4007742. Its totient is φ = 861840.

The previous prime is 2154643. The next prime is 2154667. The reversal of 2154650 is 564512.

It can be written as a sum of positive squares in 3 ways, for example, as 1399489 + 755161 = 1183^2 + 869^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21497 + ... + 21596.

2^2154650 is an apocalyptic number.

2154650 is a deficient number, since it is larger than the sum of its proper divisors (1853092).

2154650 is a wasteful number, since it uses less digits than its factorization.

2154650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43105 (or 43100 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2154650 is about 1467.8726102765. The cubic root of 2154650 is about 129.1592688560.

The spelling of 2154650 in words is "two million, one hundred fifty-four thousand, six hundred fifty".