1061645158 has 32 divisors (see below), whose sum is σ = 1885667328. Its totient is φ = 438674400.

The previous prime is 1061645149. The next prime is 1061645231. The reversal of 1061645158 is 8515461601.

It is a super-2 number, since 2×1061645158² = 2254180883009689928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115803 + ... + 124633.

It is an arithmetic number, because the mean of its divisors is an integer number (58927104).

Almost surely, 2^1061645158 is an apocalyptic number.

1061645158 is a deficient number, since it is larger than the sum of its proper divisors (824022170).

1061645158 is a wasteful number, since it uses less digits than its factorization.

1061645158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9148.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 1061645158 is about 32582.8967097770. The cubic root of 1061645158 is about 1020.1400416460.

The spelling of 1061645158 in words is "one billion, sixty-one million, six hundred forty-five thousand, one hundred fifty-eight".