145416987 has 6 divisors (see below), whose sum is σ = 210046772. Its totient is φ = 96944652.

The previous prime is 145416911. The next prime is 145416989. The reversal of 145416987 is 789614541.

145416987 is a `hidden beast` number, since 14 + 541 + 6 + 98 + 7 = 666.

145416987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145416987 - 2¹¹ = 145414939 is a prime.

It is a super-2 number, since 2×145416987² = 42292200216316338, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145416989) 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, 8078713 + ... + 8078730.

Almost surely, 2^145416987 is an apocalyptic number.

145416987 is a deficient number, since it is larger than the sum of its proper divisors (64629785).

145416987 is a wasteful number, since it uses less digits than its factorization.

145416987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16157449 (or 16157446 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 145416987 is about 12058.8965913138. The cubic root of 145416987 is about 525.8619093714.

It can be divided in two parts, 14541 and 6987, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 145416987 in words is "one hundred forty-five million, four hundred sixteen thousand, nine hundred eighty-seven".