1474601661 has 24 divisors (see below), whose sum is σ = 2296115640. Its totient is φ = 906541056.

The previous prime is 1474601659. The next prime is 1474601683. The reversal of 1474601661 is 1661064741.

It is a happy number.

1474601661 is a `hidden beast` number, since 1 + 47 + 4 + 601 + 6 + 6 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5336100 + 1469265561 = 2310^2 + 38331^2 .

It is not a de Polignac number, because 1474601661 - 2¹ = 1474601659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1474601621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122605 + ... + 134093.

It is an arithmetic number, because the mean of its divisors is an integer number (95671485).

Almost surely, 2^1474601661 is an apocalyptic number.

It is an amenable number.

1474601661 is a deficient number, since it is larger than the sum of its proper divisors (821513979).

1474601661 is a wasteful number, since it uses less digits than its factorization.

1474601661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12605 (or 12602 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1474601661 is about 38400.5424571060. The cubic root of 1474601661 is about 1138.2165766452.

The spelling of 1474601661 in words is "one billion, four hundred seventy-four million, six hundred one thousand, six hundred sixty-one".