145552011 has 16 divisors (see below), whose sum is σ = 224166528. Its totient is φ = 83024000.

The previous prime is 145552003. The next prime is 145552019. The reversal of 145552011 is 110255541.

145552011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145552003) and next prime (145552019).

It is a cyclic number.

It is not a de Polignac number, because 145552011 - 2³ = 145552003 is a prime.

It is a super-2 number, since 2×145552011² = 42370775812288242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145552019) 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, 129165 + ... + 130286.

It is an arithmetic number, because the mean of its divisors is an integer number (14010408).

Almost surely, 2^145552011 is an apocalyptic number.

145552011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

145552011 is a deficient number, since it is larger than the sum of its proper divisors (78614517).

145552011 is a wasteful number, since it uses less digits than its factorization.

145552011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259482.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 145552011 is about 12064.4938144955. The cubic root of 145552011 is about 526.0246184991.

The spelling of 145552011 in words is "one hundred forty-five million, five hundred fifty-two thousand, eleven".