151889450 has 12 divisors (see below), whose sum is σ = 282514470. Its totient is φ = 60755760.

The previous prime is 151889449. The next prime is 151889453. The reversal of 151889450 is 54988151.

It can be written as a sum of positive squares in 3 ways, for example, as 85581001 + 66308449 = 9251^2 + 8143^2 .

It is a junction number, because it is equal to n+sod(n) for n = 151889398 and 151889407.

It is not an unprimeable number, because it can be changed into a prime (151889453) 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, 1518845 + ... + 1518944.

Almost surely, 2^151889450 is an apocalyptic number.

151889450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151889450 is a deficient number, since it is larger than the sum of its proper divisors (130625020).

151889450 is a wasteful number, since it uses less digits than its factorization.

151889450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3037801 (or 3037796 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 41.

The square root of 151889450 is about 12324.3437959187. The cubic root of 151889450 is about 533.5509159956.

The spelling of 151889450 in words is "one hundred fifty-one million, eight hundred eighty-nine thousand, four hundred fifty".