145315401 has 64 divisors (see below), whose sum is σ = 257402880. Its totient is φ = 70640640.

The previous prime is 145315397. The next prime is 145315427. The reversal of 145315401 is 104513541.

145315401 = T₁₆₆ + T₁₆₇ + ... + T₉₅₆.

It is a happy number.

It is not a de Polignac number, because 145315401 - 2² = 145315397 is a prime.

It is a super-2 number, since 2×145315401² = 42233131535581602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145315441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 495811 + ... + 496103.

It is an arithmetic number, because the mean of its divisors is an integer number (4021920).

Almost surely, 2^145315401 is an apocalyptic number.

145315401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145315401 is a deficient number, since it is larger than the sum of its proper divisors (112087479).

145315401 is a wasteful number, since it uses less digits than its factorization.

145315401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 145315401 is about 12054.6837785153. The cubic root of 145315401 is about 525.7394279168.

Adding to 145315401 its reverse (104513541), we get a palindrome (249828942).

The spelling of 145315401 in words is "one hundred forty-five million, three hundred fifteen thousand, four hundred one".