1561150167 has 16 divisors (see below), whose sum is σ = 2142584832. Its totient is φ = 1010590560.

The previous prime is 1561150099. The next prime is 1561150169. The reversal of 1561150167 is 7610511651.

It is not a de Polignac number, because 1561150167 - 2¹² = 1561146071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1561150169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25684 + ... + 61497.

It is an arithmetic number, because the mean of its divisors is an integer number (133911552).

Almost surely, 2^1561150167 is an apocalyptic number.

1561150167 is a deficient number, since it is larger than the sum of its proper divisors (581434665).

1561150167 is a wasteful number, since it uses less digits than its factorization.

1561150167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87358.

The product of its (nonzero) digits is 6300, while the sum is 33.

The square root of 1561150167 is about 39511.3928759795. The cubic root of 1561150167 is about 1160.0629590779.

The spelling of 1561150167 in words is "one billion, five hundred sixty-one million, one hundred fifty thousand, one hundred sixty-seven".