1061945157 has 64 divisors (see below), whose sum is σ = 1813661696. Its totient is φ = 537788160.

The previous prime is 1061945023. The next prime is 1061945191. The reversal of 1061945157 is 7515491601.

It is not a de Polignac number, because 1061945157 - 2¹⁹ = 1061420869 is a prime.

It is a super-2 number, since 2×1061945157² = 2255455032951509298, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is the 32588-th Hogben number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061945197) by changing a digit.

It is a nontrivial repunit in base 32587.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 715338 + ... + 716820.

It is an arithmetic number, because the mean of its divisors is an integer number (28338464).

Almost surely, 2^1061945157 is an apocalyptic number.

It is an amenable number.

1061945157 is a deficient number, since it is larger than the sum of its proper divisors (751716539).

1061945157 is a wasteful number, since it uses less digits than its factorization.

1061945157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610.

The product of its (nonzero) digits is 37800, while the sum is 39.

The square root of 1061945157 is about 32587.5000115075. The cubic root of 1061945157 is about 1020.2361227668.

The spelling of 1061945157 in words is "one billion, sixty-one million, nine hundred forty-five thousand, one hundred fifty-seven".