1692642145 has 16 divisors (see below), whose sum is σ = 2208781008. Its totient is φ = 1240012800.

The previous prime is 1692642109. The next prime is 1692642163. The reversal of 1692642145 is 5412462961.

It can be written as a sum of positive squares in 8 ways, for example, as 145950561 + 1546691584 = 12081^2 + 39328^2 .

It is not a de Polignac number, because 1692642145 - 2¹³ = 1692633953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1692642098 and 1692642107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265956 + ... + 272245.

It is an arithmetic number, because the mean of its divisors is an integer number (138048813).

Almost surely, 2^1692642145 is an apocalyptic number.

It is an amenable number.

1692642145 is a deficient number, since it is larger than the sum of its proper divisors (516138863).

1692642145 is a wasteful number, since it uses less digits than its factorization.

1692642145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538260.

The product of its digits is 103680, while the sum is 40.

The square root of 1692642145 is about 41141.7324015409. The cubic root of 1692642145 is about 1191.7588436911.

It can be divided in two parts, 1692642 and 145, that multiplied together give a triangular number (245433090 = T₂₂₁₅₅).

The spelling of 1692642145 in words is "one billion, six hundred ninety-two million, six hundred forty-two thousand, one hundred forty-five".