19952154 has 12 divisors (see below), whose sum is σ = 43229706. Its totient is φ = 6650712.

The previous prime is 19952137. The next prime is 19952159. The reversal of 19952154 is 45125991.

It can be written as a sum of positive squares in only one way, i.e., 18792225 + 1159929 = 4335^2 + 1077^2 .

It is not an unprimeable number, because it can be changed into a prime (19952159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 554209 + ... + 554244.

Almost surely, 2^19952154 is an apocalyptic number.

19952154 is an abundant number, since it is smaller than the sum of its proper divisors (23277552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19952154 is a wasteful number, since it uses less digits than its factorization.

19952154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108461 (or 1108458 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 19952154 is about 4466.7834064347. The cubic root of 19952154 is about 271.2251321111.

The spelling of 19952154 in words is "nineteen million, nine hundred fifty-two thousand, one hundred fifty-four".