145420003515 has 32 divisors (see below), whose sum is σ = 236334355776. Its totient is φ = 76345433600.

The previous prime is 145420003513. The next prime is 145420003523. The reversal of 145420003515 is 515300024541.

It is not a de Polignac number, because 145420003515 - 2¹ = 145420003513 is a prime.

It is a super-2 number, since 2×145420003515² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145420003513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15324 + ... + 539513.

It is an arithmetic number, because the mean of its divisors is an integer number (7385448618).

Almost surely, 2^145420003515 is an apocalyptic number.

145420003515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145420003515 is a deficient number, since it is larger than the sum of its proper divisors (90914352261).

145420003515 is a wasteful number, since it uses less digits than its factorization.

145420003515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555119.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 145420003515 in words is "one hundred forty-five billion, four hundred twenty million, three thousand, five hundred fifteen".