1061156551 has 8 divisors (see below), whose sum is σ = 1306038944. Its totient is φ = 839596320.

The previous prime is 1061156539. The next prime is 1061156581. The reversal of 1061156551 is 1556511601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1061156551 - 2¹³ = 1061148359 is a prime.

It is a super-2 number, since 2×1061156551² = 2252106451460431202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061156521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5830440 + ... + 5830621.

It is an arithmetic number, because the mean of its divisors is an integer number (163254868).

Almost surely, 2^1061156551 is an apocalyptic number.

1061156551 is a deficient number, since it is larger than the sum of its proper divisors (244882393).

1061156551 is a wasteful number, since it uses less digits than its factorization.

1061156551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11661081.

The product of its (nonzero) digits is 4500, while the sum is 31.

The square root of 1061156551 is about 32575.3979407773. The cubic root of 1061156551 is about 1019.9835160094.

The spelling of 1061156551 in words is "one billion, sixty-one million, one hundred fifty-six thousand, five hundred fifty-one".